Sweetwater County climate

Sweetwater County Weather in March

NOAA 1991-2020 normals for Rock Springs AP, 16.2 km from Sweetwater County

Average highs run from 38°F on March 1 to 49°F on March 31, and lows from 20°F to 27°F. Normal precipitation for the month is 0.58 in over about 7 wet days.

March day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Sweetwater County, in °F, with the record for each date.-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
44°F
Average low
24°F
Precipitation
0.58 in
Snowfall
6.4 in
Record high
78°FMar 25, 2026
Record low
-12°FMar 11, 1969
Chance of a freeze
100%
Daylight
11 h 16 min to 12 h 40 min
Cloud cover
60%
Humidity
60%
Dew point
19°F
Wind
13.0 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Mar 138°F20°F57°F 1967-5°F 196019%19%
Mar 238°F20°F59°F 2022-10°F 196019%19%
Mar 339°F20°F59°F 2009-6°F 201919%19%
Mar 439°F21°F55°F 1986-7°F 198919%19%
Mar 539°F21°F59°F 2016-4°F 196619%19%
Mar 640°F21°F59°F 1972-1°F 196419%18%
Mar 740°F22°F58°F 1970-5°F 196419%18%
Mar 841°F22°F58°F 1986-1°F 196420%18%
Mar 941°F22°F63°F 1972-4°F 194820%18%
Mar 1042°F23°F67°F 1989-10°F 194820%18%
Mar 1142°F23°F64°F 1989-12°F 196920%18%
Mar 1243°F23°F61°F 1989-1°F 195620%18%
Mar 1343°F24°F63°F 2003-6°F 196221%18%
Mar 1443°F24°F65°F 2013-8°F 196921%18%
Mar 1544°F24°F68°F 20150°F 196921%18%
Mar 1644°F25°F64°F 19943°F 200221%18%
Mar 1745°F25°F66°F 2007-7°F 196522%18%
Mar 1845°F25°F72°F 2026-11°F 196522%18%
Mar 1945°F25°F75°F 2026-1°F 196522%18%
Mar 2046°F26°F75°F 20262°F 195523%18%
Mar 2146°F26°F76°F 2026-3°F 195523%18%
Mar 2246°F26°F71°F 20042°F 195223%18%
Mar 2347°F26°F68°F 20041°F 196424%18%
Mar 2447°F26°F73°F 2026-3°F 196424%18%
Mar 2547°F27°F78°F 2026-4°F 195524%19%
Mar 2648°F27°F69°F 2025-2°F 195525%19%
Mar 2748°F27°F71°F 20250°F 197525%19%
Mar 2848°F27°F72°F 2026-1°F 197525%19%
Mar 2949°F27°F69°F 20260°F 198725%19%
Mar 3049°F27°F67°F 19716°F 197726%19%
Mar 3149°F27°F72°F 20122°F 195426%19%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sweetwater County, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

March 1
sunrise 6:50 AM, sunset 6:06 PM
March 31
sunrise 7:00 AM, sunset 7:40 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024027 (Rock Springs AP), public domain. Records: NOAA GHCN-Daily, station USW00024027, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.